- All Under Armour® Apparel features a tagless design or tear-away tag with no left-over pieces.
- Feel the perfect blend of comfort and style wearing the Under Armour® Kids Performance Tech – Solid 3-Pack. This pack of three performance tech boxer briefs features elasticized waistband with brand detailing, functional fly, four-way stretch fabric, no ride-up leg, and chafe-free seams.
- 90% polyester, 10% spandex.
- Machine washable.
- Imported.
- If you’re not fully satisfied with your purchase, you are welcome to return any unworn, unwashed items in the original packaging with tags and if applicable, the protective adhesive strip intact. Note: Briefs, swimsuits and bikini bottoms should be tried on over underwear, without removing the protective adhesive strip. Returns that fail to adhere to these guidelines may be rejected.
Under Armour Kids Performance Tech Solid 3-Pack Boxer Briefs (Big Kids) | Underwear
$28.00 Original price was: $28.00.$18.48Current price is: $18.48.
SKU: Underwear 9966889 Categories: Clothing, Underwear Tags: Black, Black W/Ares Red, Black/Red, Midnight Navy
- Service that stands out, online and always timely.
- Quality that lasts, prices that don't.
- Efficient and effective customer service, online.
- Free and fast shipping worldwide

| Color | Black, Black W/Ares Red, Black/Red, Midnight Navy |
|---|---|
| size | LG (14-16 Big Kid), MD (10-12 Big Kid), SM (8 Big Kid), XL (18-20 Big Kid) |
5 reviews for Under Armour Kids Performance Tech Solid 3-Pack Boxer Briefs (Big Kids) | Underwear
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Dennis11 –
These underwear fit great, breathable and stylish. My kid love them
Rosana G –
Exactly what I was looking for my son. Fits perfectly and very flexible
Katie037 –
First time buying UA boxers for my son.
Youth M – Claims 10-12 YR according to the size chart.
My son is athletic / skinny body type and a youth medium is tight on him @ 75 pounds – 10 years old.
Sizing reference is off, I recommend sizing up.
Fabric and cut is as expected for a premium kids boxer.
Jen0612 –
Bought these for my 5 year old son and they fit perfectly. He says they’re super comfy and wants more!
Jackie –
Fit good.